/Engine/Plugins/Runtime/Metasound/Source/MetasoundFrontend/Public/MetasoundFrontendRegistries.h
Iterates class types in registry. If InClassType is set to a valid class type (optional), only iterates classes of the given type.
void IterateRegistry ( [Metasound::FIterateMetasoundFrontendClassFunction](API\Plugins\MetasoundFrontend\FIterateMetasoundFrontendClassFu-) InIterFunc, [EMetasoundFrontendClassType](API\Plugins\MetasoundFrontend\EMetasoundFrontendClassType) InClassType ) const